noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Massive, usually dull-colored and opaque, quartzite, hornstone, impure chalcedony, or other flint-like mineral. uncountable
2. 2
   variety of silica containing microcrystalline quartz wordnet
3. 3
   A flint-like tool made from chert. countable

Synonyms

All synonyms

flintflintshornstone

Etymology

Unknown.